diff options
| -rw-r--r-- | block/blk-mq.c | 13 | ||||
| -rw-r--r-- | include/linux/blk-mq.h | 1 |
2 files changed, 14 insertions, 0 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c index cc85de9d6b2d..07785b5cf2bc 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -181,6 +181,19 @@ void blk_mq_quiesce_queue(struct request_queue *q) } EXPORT_SYMBOL_GPL(blk_mq_quiesce_queue); +/* + * blk_mq_unquiesce_queue() - counterpart of blk_mq_quiesce_queue() + * @q: request queue. + * + * This function recovers queue into the state before quiescing + * which is done by blk_mq_quiesce_queue. + */ +void blk_mq_unquiesce_queue(struct request_queue *q) +{ + blk_mq_start_stopped_hw_queues(q, true); +} +EXPORT_SYMBOL_GPL(blk_mq_unquiesce_queue); + void blk_mq_wake_waiters(struct request_queue *q) { struct blk_mq_hw_ctx *hctx; diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index 78a8b64074ea..787d8a2a2ac6 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -245,6 +245,7 @@ void blk_mq_start_hw_queues(struct request_queue *q); void blk_mq_start_stopped_hw_queue(struct blk_mq_hw_ctx *hctx, bool async); void blk_mq_start_stopped_hw_queues(struct request_queue *q, bool async); void blk_mq_quiesce_queue(struct request_queue *q); +void blk_mq_unquiesce_queue(struct request_queue *q); void blk_mq_delay_run_hw_queue(struct blk_mq_hw_ctx *hctx, unsigned long msecs); void blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async); void blk_mq_run_hw_queues(struct request_queue *q, bool async); |